文献类型：期刊文献

英文题名：Influence of Mn doping on the performance of CuO-CeO2 catalysts for selective oxidation of CO in hydrogen-rich streams

作者：Li, Jing[1];Zhu, Pengfei[1,2];Zuo, Shufeng[1,3];Huang, Qinqin[1];Zhou, Renxian[1]

机构：[1]Zhejiang Univ, Inst Catalysis, Hangzhou 310028, Zhejiang, Peoples R China;[2]SW Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R China;[3]Shaoxing Univ, Inst Appl Chem, Shaoxing 312000, Peoples R China

年份：2010

卷号：381

期号：1-2

起止页码：261

外文期刊名：APPLIED CATALYSIS A-GENERAL

收录：SCI-EXPANDED(收录号：WOS:000279100700031)、、WOS

基金：We gratefully acknowledge the financial support from the Ministry of Science and Technology of China (no. 2004 CB 719504).

语种：英文

外文关键词：Mn doping; CuO-CeO2 catalysts; Selective oxidation of CO; Hydrogen-rich streams; Oxygen vacancies

外文摘要：CuO-CeO2 catalysts with different amounts of Mn doping were prepared by a hydrothermal method and were investigated by means of X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), temperature-programmed reduction (H-2-TPR), X-ray photoelectron spectroscopy (XPS) and UV-Raman. The results show that MnOx-CuO-CeO2 catalyst with Mn:Cu =1:5 exhibits the best catalytic activity and the broadest operating temperature "window" for the high conversion (CO conversion >99.0%, 110-140 degrees C) in the selective oxidation of CO in hydrogen-rich streams. Doping an appropriate amount of Mn in CuO-CeO2 catalyst is beneficial to the formation of a more stable solid solution with a larger surface area and smaller particle size, and the redox properties of the catalysts are also enhanced, which improves the selective oxidation performance of CO in hydrogen-rich streams. Crown (C) 2010 Published by Elsevier B.V. All rights reserved.